Estimated speed for elbow to head game impacts
| Case | Speed(m/s) | Injury reported |
|---|---|---|
| 1 | 1.3 | Head wound |
| 2 | 4.1 | Scalp laceration |
| 3 | 1.0 | Lower lip |
| 4 | 2.8 | Nose fracture, skull trauma |
| 5 | 5.3 | Head contusion—severity 2 days |
| 6 | 3.7 | Facial laceration—severity 3 days |
| Mean | 3.03 | |
| SD | 1.67 | |
| 95% CI± | 1.33 |